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fbvar.h revision 1.1 
      1 /*	$NetBSD: fbvar.h,v 1.1 2000/08/20 14:00:43 pk Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratory.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. All advertising materials mentioning features or use of this software
     25  *    must display the following acknowledgement:
     26  *	This product includes software developed by the University of
     27  *	California, Berkeley and its contributors.
     28  * 4. Neither the name of the University nor the names of its contributors
     29  *    may be used to endorse or promote products derived from this software
     30  *    without specific prior written permission.
     31  *
     32  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     42  * SUCH DAMAGE.
     43  *
     44  *	@(#)fbvar.h	8.1 (Berkeley) 6/11/93
     45  */
     46 
     47 /*
     48  * Frame buffer variables.  All frame buffer drivers must provide the
     49  * following in order to participate.
     50  */
     51 
     52 #ifdef RASTERCONSOLE
     53 #include <dev/rcons/rcons.h>
     54 #include <dev/wscons/wsdisplayvar.h>
     55 #include <dev/rasops/rasops.h>
     56 #endif
     57 
     58 struct fbdriver {
     59 	/* device unblank function (force kernel output to display) */
     60 	void	(*fbd_unblank) __P((struct device *));
     61 	int	(*fbd_open) __P((dev_t, int, int, struct proc *));
     62 	int	(*fbd_close) __P((dev_t, int, int, struct proc *));
     63 	int	(*fbd_ioctl) __P((dev_t, u_long, caddr_t, int, struct proc *));
     64 	int	(*fbd_poll) __P((dev_t, int, struct proc *));
     65 	paddr_t	(*fbd_mmap) __P((dev_t, off_t, int));
     66 #ifdef notyet
     67 	/*
     68 	 * XXX redundant idea? these can hook into rasops on a per-device
     69 	 * basis like: fb_rinfo.ri_ops.copycols = ....;
     70 	 */
     71 	void	(*fbd_wrrop)();		/* `write region' rasterop */
     72 	void	(*fbd_cprop)();		/* `copy region' rasterop */
     73 	void	(*fbd_clrop)();		/* `clear region' rasterop */
     74 #endif
     75 };
     76 
     77 struct fbdevice {
     78 	int	fb_major;		/* XXX */
     79 	struct	fbtype fb_type;		/* what it says */
     80 	caddr_t	fb_pixels;		/* display RAM */
     81 	int	fb_linebytes;		/* bytes per display line */
     82 
     83 	struct	fbdriver *fb_driver;	/* pointer to driver */
     84 	struct	device *fb_device;	/* parameter for fbd_unblank */
     85 
     86 	int	fb_flags;		/* misc. flags */
     87 #define	FB_FORCE	0x00000001	/* force device into /dev/fb */
     88 #define	FB_PFOUR	0x00010000	/* indicates fb is a pfour fb */
     89 #define FB_USERMASK	(FB_FORCE)	/* flags that the user can set */
     90 
     91 	volatile u_int32_t *fb_pfour;	/* pointer to pfour register */
     92 
     93 #ifdef RASTERCONSOLE
     94 	/* Raster console emulator state */
     95 	struct	rconsole fb_rcons;
     96 	struct	rasops_info fb_rinfo;
     97 #endif
     98 };
     99 
    100 void	fb_attach __P((struct fbdevice *, int));
    101 void	fb_setsize_obp __P((struct fbdevice *, int, int, int, int));
    102 void	fb_setsize_eeprom __P((struct fbdevice *, int, int, int));
    103 int	fb_is_console __P((int));
    104 #ifdef RASTERCONSOLE
    105 void	fbrcons_init __P((struct fbdevice *));
    106 int	fbrcons_rows __P((void));
    107 int	fbrcons_cols __P((void));
    108 #endif
    109 
    110 int	fb_pfour_id __P((volatile void *));
    111 int	fb_pfour_get_video __P((struct fbdevice *));
    112 void	fb_pfour_set_video __P((struct fbdevice *, int));
    113